Problem Solving of Pair of Linear Equations based on Substitution Method

The video tutorial explains how to solve a pair of linear equations graphically. It involves plotting two given equations on a graph to form a triangle with the x-axis and finding the vertices of this triangle. The tutorial is divided into steps, starting with understanding the problem, plotting each equation, and finally identifying the vertices of the triangle formed.

Why did the teacher choose x as 6 after taking x as 0?

What are the coordinates of the vertices of the triangle formed by the two lines and the x-axis?

Summarize the steps taken to solve the problem.